Here, using a plain text editor like Notepad, around line 85 in the script, add the highlighted:
Code:
$magnifier.outer.bind(ddpowerzoomer.mousewheelevt, function(e){ //bind mousewheel event to magnifier
e = e.originalEvent;
if (ddpowerzoomer.activeimage){
var delta=e.detail? e.detail*(-120) : e.wheelDelta //delta returns +120 when wheel is scrolled up, -120 when scrolled down
if (delta<=-120){ //zoom out
ddpowerzoomer.movemagnifier(e, false, "out")
}
else{ //zoom in
ddpowerzoomer.movemagnifier(e, false, "in")
}
e.preventDefault()
}
})
Save and use that version.
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